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From: dswankii@uok.UUCP
Newsgroups: net.auto
Subject: Re: re: parking light law question - (nf)
Message-ID: <500048@uok.UUCP>
Date: Wed, 5-Sep-84 12:13:00 EDT
Article-I.D.: uok.500048
Posted: Wed Sep  5 12:13:00 1984
Date-Received: Wed, 12-Sep-84 01:36:25 EDT
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Nf-ID: #R:cca:-14400:uok:500048:000:868
Nf-From: uok!dswankii    Sep  5 11:13:00 1984

#R:cca:-14400:uok:500048:000:868
uok!dswankii    Sep  5 11:13:00 1984


Answering Will's question first, a car with a 35 amp. alternator can 
provide 420 watts of power (P = EI). Headlights use between 50 and 65 watts
each depending on the configuration of the lights and the high/low switch
setting. Add in the power needed for the parking/clearance lights and the
dash lamps and you get something in the range of 200 watts. Maybe 250.
Obviously the headlights will not overload the charging system and when you
consider that some cars have 100 amp. (1200 watt) alternators, there is plenty
of power for lights. 

As for using lights, it is illegal in Oklahoma to drive with only the parking/
clearance lights on. Also, some two lane roads that have heavy trafic ask that
drivers turn on their lights in the day to help prevent head-on wrecks on these
roads. 


				David Swank II
				ctvax!uokvax!uok!dswankii
				Uniersity of Oklahoma